Current version is LGS 3D 1.3

The LEDAS Company releases the fourth commercial version of its variational geometric solver LGS 3D.

Recently released 1.3 version makes a breakthrough by significantly improving performance of all user functions due to efficient optimization of the core computational techniques: speed-up of Diagnostic is about 50%, speed-up of Update is 80-100% and speed-up of MUC (Move Under Constraint feature) is 100-130%. The results have been measured on the test base of more than three thousand industrial cases of different types.

Being enforced by a number of new heuristics, LGS 3D 1.3 is now able to solve correctly and naturally more problems providing to users an efficient tool for model creation and dynamic modification. Development of more stable computational methods have made possible to provide exactly the same behavior of the solver on different hardware and software platforms in almost all cases that is very important for big heterogeneous CAD/CAM/CAE systems.

All these advantages are accompanied by improvement of usability of demo application Legend, additional useful information in case of incorrect usage of LGS 3D API functions, and a number of minor enhancements.

For the full list of changes see Release Status page.

About LGS 3D

LGS 3D geometric solver is a computational software module that supports parametric design functionality in CAD systems. In addition, geometric modeling and virtual reality systems, as well as other applications that require logical and parametric connections or constraints to be managed between geometric objects in a three-dimensional environment, may also benefit from integration with LGS 3D.

Currently, many modern CAD systems offer assembly design modules. In today's ascending assembly design process, it is impossible to work without using assembly constraints such as coincidence and coaxiality. These constraints dictate the relative positioning of each part within the design model. By manipulating with parametric constraints and moving parts while satisfying all design constraints, designers can evaluate kinematics of the model at the early stages of the project.

Recent trends in three-dimensional drawing systems have increasingly tended towards dissemination. As a result, three-dimensional models are obtained not from two-dimensional sketches, but directly from the three-dimensional primitives in a process resembling the way ordinary two-dimensional vector models are constructed. These systems typically require levels of parametric functionality equal to two-dimensional drawing systems. However, the ability to set parametric constraints eliminates the need for exact drawing by designers because the constraints have the ability to render a sketch into an exact design. Other benefits of this functionality include simplification of process of model modification and the ability to carry out a simple kinematical analysis of the model.